Audi S3 Key Fob Battery Parts
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Based on industry averages you can expect to pay between $4.59 and $4.59 for a Audi S3 key fob battery.
What Type Of Battery Does The Audi S3 Key Fob Use?
If you're holding an Audi S3 key fob in your hand and wondering which battery it takes, you'll likely need a CR2032 lithium coin cell. This small, round battery turns up at most hardware stores, big-box retailers, or even your local supermarket near the hearing aid supplies. Before you pop the old one out, it’s a smart move to check your owner’s manual, since Audi sometimes makes small changes between model years. A wrong battery may fit, but it won’t power the fob right or could even short out the electronics. Keeping an extra battery in your glovebox makes life easier if your fob quits on you at the wrong time.
How Can I Tell If My Audi S3 Key Fob Battery Is Low?
You pull up to your Audi and click the unlock button, but the lights don’t flash. The range is nowhere near what it used to be, and sometimes the door only unlocks after two or three tries. On some S3 models, a message will show up on the dashboard—“Key Battery Low.” If you see this, don’t ignore it. Wait too long, and you might find yourself locked out when you least expect it. Issues starting the car are another clue if your S3 uses push-button start. Living with a dying fob battery quickly turns into a hassle, so swapping it out at the first sign is your best bet.
What Steps Should I Follow To Change My Audi S3 Key Fob Battery?
You don’t need any special tools or electronics skills to get the job done. First, look for a notch or seam in your fob. Wedge a flat screwdriver or a sturdy coin into the slot and twist gently until the cover splits open. Take note of how the old battery sits, then pop it out with your finger or a small tool. Slip the new battery in, matching the positive and negative sides to what you removed, and press the halves of the fob back together until they snap. Test the buttons with your car nearby—it should respond right away. If not, open it up and check if the battery is seated correctly.
Will My Audi S3 Key Fob Need Re-Programming After Replacing The Battery?
Here’s some good news: for virtually every Audi S3, replacing the key fob battery is plug-and-play. No dealer required, no reprogramming, no hassle. Change out the battery and the fob should connect to your car just like before. If things don’t work on the first try, double-check the new battery’s orientation and make sure nothing inside the case is bent or out of place. Occasionally, dust or residue on the contacts can get in the way. A quick wipe with a clean, dry cloth usually sorts that out. Still no luck? Then it might be time to ask your dealer for help.
How Long Does An Audi S3 Key Fob Battery Typically Last?
Most Audi S3 owners can expect their key fob battery to hold up for 2 to 4 years, sometimes a little less if you’re constantly locking, unlocking, or if the car sits out in extreme cold or heat. Using remote start often or always keeping your fob close to your car can speed up battery drain, too. To make your battery last, avoid leaving the fob in the sun, and store it inside when possible. If the car’s going unused for a while, use the manual key or keep the fob away from the vehicle to pause the electronic chatter. That way, you’ll get the most out of each battery before swapping it.
Looking For The Best Place To Buy An Audi S3 Key Fob Battery?
When it comes time for a new battery, AutohausAZ is a solid choice. Their prices won’t put a dent in your wallet, and shipping tends to be quick—no endless waiting for a small part to arrive. Questions or problems? Their returns are simple and straightforward, so you don’t have to jump through hoops or worry about refunds if something’s not right. Audi owners keep coming back because they know every order gets personal attention, big or small. Whether it's a full repair project or a quick fix like a new key fob battery, they make sure you’re set. Ordering is simple. Try them out once, and chances are you’ll be back next time you need something for your S3.
